Abstract

Thirty-four strains of Aedes aegypti larvae from 17 Caribbean countries were bioassayed for sensitivity to temephos, malathion, fenitrothion, fenthion, and chlorpyrifos. There were fairly high levels of resistance in Tortola (10-12-fold resistance) and Antigua (6-9-fold resistance) strains to temephos and to fenthion (Tortola, 7-10-fold; Antigua, 6-10-fold resistance). Most other strains showed some resistance to malathion, fenitrothion, and chlorpyrifos, but only moderate levels. Adult populations of Ae. aegypti--Aruba, Jamaica, Trinidad, Puerto Rico, St. Lucia, and Antigua strains--also showed moderate resistance to malathion. Mosquito control field data supported the laboratory findings. Doubling the diagnostic dosage of temephos for larval Ae. aegypti was only partially effective against a more resistant strain, and even so, the chemical lost its limited efficacy over a short period of time. Integrated strategies for Ae. aegypti control to mitigate the negative effects of insecticide resistance in the Caribbean strains are suggested.

Addeddate

2011-07-03 05:30:50

Identifier

cbarchive_103373_resistanceinsomecaribbeanpopul1995

Identifier-ark

ark:/13960/t09w1br2w

Issue

1

Noindex

true

Ocr

ABBYY FineReader 8.0

Original_publication

Journal of the American Mosquito Control Association

Pages

059-065

Ppi

300

Publication_type

Journal Article

Rights_license_name

Attribution-NonCommercial-ShareAlike 3.0 Unported

Rights_license_url

http://creativecommons.org/licenses/by-nc-sa/3.0/

Rights_statement

Permission to host granted on behalf of The American Mosquito Control Association

Rights_status

in copyright

Source_organization

The American Mosquito Control Association

Source_project

Journal of the American Mosquito Control Association

Url

http://citebank.org/node/103373

Year

1995

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